#include <iostream>
#include <set>
#include <vector>

using namespace std;

int main(int argc, char** argv) {
	vector<set<int>> vs;
	cout << "Hello world" << endl;
	int tableau[5] = {1, 2, 3, 4, 5};
	for (int &k : tableau) {
		k++;
	}
	for (int i = 0; i < 5; i++) {
		cout << tableau[i] << endl;
	}
}

